Two-dimensional simulation of flow hydraulics and bed-load transport in a mountain gravel-bed stream: The upper Spanish Creek

Jennifer G. Duan, Dong Chen, Weller Jen, Terry Benoit

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Sediment transport in a gravel-bed mountain stream, the Upper Spanish Creek, California, was simulated with a depth-averaged, two-dimensional hydrodynamic and sediment transport model. The hydrodynamic model is based on the solution of depth-averaged flow continuity and momentum equations with dispersion terms to account for the effect of secondary flow. The sediment transport model treats bed load and bed material as mixtures of multiple grain-size sediment. Changes in bed elevation are calculated by solving the sediment mass conservation equation. The model was applied to predict bed-load transport in the Upper Spanish Creek to identify areas of high-erosive potential that require bank protections. Results of this verification process demonstrated the applicability of the two-dimensional hydrodynamic and sediment transport model to assist river restoration designs for gravel-bed streams.

Original languageEnglish (US)
Title of host publicationRestoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress
PublisherAmerican Society of Civil Engineers (ASCE)
ISBN (Print)9780784409275
DOIs
StatePublished - 2007

Publication series

NameRestoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

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    Duan, J. G., Chen, D., Jen, W., & Benoit, T. (2007). Two-dimensional simulation of flow hydraulics and bed-load transport in a mountain gravel-bed stream: The upper Spanish Creek. In Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress (Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/40927(243)106